Home / 868,247.20-1,299,836.40-619,415.20

Finding the Fourth Proportional to 868,247.20, 1,299,836.40 and 619,415.20

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Solution

The fourth proportional to 868,247.20, 1,299,836.40 and 619,415.20 is: 927,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,247.20 : 1,299,836.40 = 619,415.20 : x
  2. Step 2: Convert to fraction form
    868,247.20/1,299,836.40 = 619,415.20/x
  3. Step 3: Cross multiply
    868,247.20x = 1,299,836.40 × 619,415.20
  4. Step 4: Simplify right side
    868,247.20x = 805,138,423,673.28
  5. Step 5: Solve for x
    x = 805,138,423,673.28/868,247.20
  6. Step 6: Final answer
    x = 927,314.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.